Slide 12
Slide 12 text
DCR検証 – 2 検証SQL
```
SELECT count(c.EMAIL_SHA256) as consumer_cnt, count(p.mail)
as yomiuri_cnt, DIV0(yomiuri_cnt,consumer_cnt) as
match_ratioFROM ( SELECT distinct EMAIL_SHA256 FROM
DCR.YOMIURI.ZENPLACE_USER ) cLEFT OUTER JOIN
yomiuri_dcr.cleanroom.yomiuri_users_with_mail pON
c.EMAIL_SHA256=p.mail;
```